Rival B's liver was fucked from years of alcoholism, therefore the alcohol killed him.

Hahaha, bad guess.
poiuyt Reviewed by poiuyt on . Riddle for you lets see whos smart enough to figure this one out, An ambitious businessman decided to murder both of his rivals by poisoning their drinks. He gave them both a gin and tonic, with ice and lemon. Rival A knocked back his drink in two quick gulps, Rival B sat and sipped his slowly, B later died but A did not, assuming there was the same amount of poison in the drinks, why did this happen? Rating: 5